{"product_id":"thermo-scientific-20lfeetsa-value-series-laboratory-freezer","title":"Thermo Scientific 20LFEETSA Value Series Laboratory Freezer","description":"\u003ch2\u003eThermo Scientific 20LFEETSA Value Series Laboratory Freezer – 20.9 Cu. Ft.\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eThermo Scientific 20LFEETSA Value Series Laboratory Freezer\u003c\/strong\u003e is a full-size upright general-purpose freezer designed for routine frozen storage of non-critical laboratory samples, reagents, research materials, and other products requiring approximately -20°C conditions. With a \u003cstrong\u003e20.9 cu. ft. storage capacity and an adjustable temperature range of -12°C to -20°C\u003c\/strong\u003e, the 20LFEETSA provides substantial frozen storage in a straightforward, cost-effective laboratory freezer.\u003c\/p\u003e\n\u003cp\u003eThe manual-defrost design makes this model particularly useful for laboratories that prefer to avoid the periodic warming cycles associated with automatic-defrost systems. Four fixed interior shelves and six fixed door shelves provide multiple storage areas for organizing reagents, samples, standards, and other frozen laboratory inventory.\u003c\/p\u003e\n\u003cp\u003eThis used Thermo Scientific 20LFEETSA is \u003cstrong\u003erefurbished and tested by American Instrument Exchange\u003c\/strong\u003e prior to shipment and includes a \u003cstrong\u003e90-day warranty from AIE\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e20.9 cu. ft. laboratory freezer capacity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAdjustable temperature range from \u003cstrong\u003e-12°C to -20°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for general storage of non-critical laboratory samples and reagents\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManual-defrost refrigeration system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical temperature control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour fixed interior shelves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSix fixed door shelves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInterior lighting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSingle solid hinged door\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEpoxy-coated steel interior and exterior\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePolyurethane foam insulation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eR134a CFC-free refrigerant\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBottom-mounted compressor\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFour adjustable leveling feet\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e115 V, 60 Hz electrical service\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNEMA 5-15P plug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ecCSAus agency listing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRefurbished and tested by American Instrument Exchange\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e90-day AIE warranty included\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA is part of the Value Series of laboratory cold-storage equipment, designed to meet routine laboratory freezer requirements without the complexity or expense of equipment intended for highly critical sample storage.\u003c\/p\u003e\n\u003cp\u003eWith approximately \u003cstrong\u003e20.9 cu. ft. of internal capacity\u003c\/strong\u003e, the freezer provides substantially more storage than compact or undercounter models while maintaining the convenient organization of a conventional upright cabinet.\u003c\/p\u003e\n\u003cp\u003eThe freezer operates over an adjustable range of \u003cstrong\u003e-12°C to -20°C\u003c\/strong\u003e, making it suitable for many reagents, research materials, standards, and other products intended for conventional frozen laboratory storage.\u003c\/p\u003e\n\u003cp\u003eA \u003cstrong\u003emanual-defrost refrigeration system\u003c\/strong\u003e eliminates automatic defrost heating cycles. This can be advantageous for laboratory applications where users prefer a relatively straightforward frozen-storage environment, although periodic manual defrosting is required as frost accumulates.\u003c\/p\u003e\n\u003cp\u003eThe interior includes four fixed shelves plus six additional fixed shelves in the door. This combination gives laboratories multiple storage zones for separating inventory by project, researcher, material type, or frequency of use.\u003c\/p\u003e\n\u003cp\u003eFor laboratories replacing an older general-purpose freezer or expanding their approximately -20°C storage capacity, a refurbished Thermo Scientific 20LFEETSA can provide a practical and economical alternative to purchasing comparable new cold-storage equipment.\u003c\/p\u003e\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA is intended for \u003cstrong\u003egeneral storage of non-critical samples and reagents\u003c\/strong\u003e requiring conventional frozen conditions. Potential applications include storage of compatible laboratory reagents, research compounds, analytical standards, controls, prepared materials, and other laboratory inventory with storage requirements that fall within the freezer's -12°C to -20°C operating range.\u003c\/p\u003e\n\u003cp\u003eThe unit can support routine frozen-storage requirements in molecular biology, biotechnology research, chemistry, pharmaceutical research, academic laboratories, analytical testing, industrial research, and quality-control environments.\u003c\/p\u003e\n\u003cp\u003eBecause Thermo Scientific specifically categorizes the 20LFEETSA for \u003cstrong\u003enon-critical samples and reagents\u003c\/strong\u003e, laboratories storing irreplaceable specimens, high-value biological materials, or materials requiring more stringent temperature control should evaluate whether a freezer with additional monitoring, alarm, or performance features would be more appropriate.\u003c\/p\u003e\n\u003ch3\u003eIdeal Laboratory Types\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA is well suited for \u003cstrong\u003eacademic research laboratories, biotechnology companies, pharmaceutical facilities, analytical laboratories, industrial research facilities, chemistry laboratories, quality-control departments, teaching laboratories, and other scientific environments\u003c\/strong\u003e requiring substantial general-purpose frozen storage.\u003c\/p\u003e\n\u003cp\u003eIts relatively simple design can be particularly attractive for laboratories that need dependable storage for routine inventory without paying for advanced features that may not be necessary for the application.\u003c\/p\u003e\n\u003cp\u003eThe 20.9 cu. ft. capacity also makes the unit useful as a centralized departmental freezer or as supplemental -20°C-class storage in larger facilities with multiple refrigerators, freezers, and ultra-low temperature freezers.\u003c\/p\u003e\n\u003ch3\u003eTemperature Recovery \u0026amp; Uniformity\u003c\/h3\u003e\n\u003cp\u003eThe 20LFEETSA is a \u003cstrong\u003egeneral-purpose Value Series freezer\u003c\/strong\u003e, so expectations for temperature performance should be matched to its intended application.\u003c\/p\u003e\n\u003cp\u003eThermo Scientific specifies an adjustable operating range of -12°C to -20°C and notes that actual freezer performance can vary according to product quantity, product size, and operating conditions.\u003c\/p\u003e\n\u003cp\u003eTemperature recovery following a door opening will similarly depend on how long the door remains open, ambient laboratory conditions, freezer loading, the thermal mass of stored materials, and the condition of the refrigeration system.\u003c\/p\u003e\n\u003cp\u003eThe freezer's four interior shelves and six door shelves allow materials to be organized for rapid retrieval. Keeping frequently used products in predictable locations can reduce door-open time and limit the amount of warmer laboratory air entering the cabinet.\u003c\/p\u003e\n\u003cp\u003eBecause door shelving is inherently closer to the surrounding environment when the freezer is opened, laboratories should consider the temperature sensitivity of individual materials when deciding where inventory is stored.\u003c\/p\u003e\n\u003cp\u003eFor applications requiring tighter temperature monitoring or documented uniformity, independent temperature monitoring should be considered.\u003c\/p\u003e\n\u003ch3\u003eSample Storage Recommendations\u003c\/h3\u003e\n\u003cp\u003eThe 20LFEETSA is best used for materials whose specified storage requirements are compatible with its \u003cstrong\u003e-12°C to -20°C operating range\u003c\/strong\u003e and its designation as a general-purpose freezer for non-critical samples and reagents.\u003c\/p\u003e\n\u003cp\u003eThe four fixed interior shelves can be organized by project, sample type, research group, or material category. The six door shelves provide convenient additional storage for compatible materials that benefit from quick access.\u003c\/p\u003e\n\u003cp\u003eFrequently used inventory should be positioned where it can be retrieved without prolonged door openings. Clear labels and consistent shelf assignments can make a significant difference in a shared laboratory freezer.\u003c\/p\u003e\n\u003cp\u003eBecause the 20LFEETSA is a \u003cstrong\u003emanual-defrost freezer\u003c\/strong\u003e, frost accumulation should be monitored routinely. Excessive frost reduces usable storage space and can eventually interfere with normal operation and door sealing.\u003c\/p\u003e\n\u003cp\u003eLaboratories should establish a defrost schedule appropriate for their usage and ambient conditions, along with a plan for temporarily relocating frozen materials during defrosting.\u003c\/p\u003e\n\u003cp\u003eHigh-value or irreplaceable samples should be supported by appropriate independent monitoring, alarm systems, backup storage, and emergency-response procedures rather than relying exclusively on a general-purpose freezer.\u003c\/p\u003e\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eThermo Scientific 20LFEETSA\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eEquipment Type\u003c\/td\u003e\n\u003ctd\u003eGeneral-Purpose Laboratory Freezer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eThermo Scientific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e20LFEETSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eValue Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e20.9 cu. ft. \/ 591.82 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e-12°C to -20°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSetpoint\u003c\/td\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefrost\u003c\/td\u003e\n\u003ctd\u003eManual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR134a, CFC-free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation\u003c\/td\u003e\n\u003ctd\u003ePolyurethane foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control\u003c\/td\u003e\n\u003ctd\u003eMechanical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eController Location\u003c\/td\u003e\n\u003ctd\u003eInterior, right wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Doors\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoor Type\u003c\/td\u003e\n\u003ctd\u003eSolid hinged, non-reversible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoor Lock\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Shelves\u003c\/td\u003e\n\u003ctd\u003e4 fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDoor Shelves\u003c\/td\u003e\n\u003ctd\u003e6 fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Lighting\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Material\u003c\/td\u003e\n\u003ctd\u003eEpoxy-coated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Material\u003c\/td\u003e\n\u003ctd\u003eEpoxy-coated steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompressor\u003c\/td\u003e\n\u003ctd\u003eBottom mounted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLeveling\u003c\/td\u003e\n\u003ctd\u003e4 adjustable leveling feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e57.8\"H × 27.8\"W × 23.8\"D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e73.13\"H × 34\"W × 30.5\"D\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnpacked Weight\u003c\/td\u003e\n\u003ctd\u003e200 lb.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e230 lb.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical\u003c\/td\u003e\n\u003ctd\u003e115 V, 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Wattage\u003c\/td\u003e\n\u003ctd\u003e575 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePlug\u003c\/td\u003e\n\u003ctd\u003eNEMA 5-15P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Cord\u003c\/td\u003e\n\u003ctd\u003e10 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Clearance\u003c\/td\u003e\n\u003ctd\u003e3\" sides, rear, and top\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAgency Listing\u003c\/td\u003e\n\u003ctd\u003ecCSAus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCondition\u003c\/td\u003e\n\u003ctd\u003eUsed \/ Refurbished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAIE Warranty\u003c\/td\u003e\n\u003ctd\u003e90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEnergy Efficiency \u0026amp; Operating Costs\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA uses \u003cstrong\u003eR134a CFC-free refrigerant and polyurethane foam insulation\u003c\/strong\u003e to maintain conventional frozen-storage conditions.\u003c\/p\u003e\n\u003cp\u003eBecause the freezer operates only as cold as -20°C, it generally serves a different purpose from an ultra-low temperature freezer. Laboratories should avoid using significantly colder and more energy-intensive equipment for inventory that only requires conventional -20°C-class storage when an appropriate general-purpose freezer can satisfy the application.\u003c\/p\u003e\n\u003cp\u003eInstallation also affects refrigeration performance. Thermo Scientific specifies a \u003cstrong\u003eminimum of 3 inches of clearance at the sides, rear, and top\u003c\/strong\u003e of the 20LFEETSA.\u003c\/p\u003e\n\u003cp\u003eAdequate clearance allows heat generated by the refrigeration system to dissipate properly. Crowding the freezer against walls, laboratory casework, or other equipment can interfere with heat rejection and place unnecessary stress on the compressor.\u003c\/p\u003e\n\u003cp\u003eDoor-opening frequency also affects energy use. Organizing samples for rapid retrieval, maintaining a proper door seal, and keeping frost accumulation under control can help the refrigeration system operate efficiently.\u003c\/p\u003e\n\u003cp\u003eActual electrical consumption will vary with ambient temperature, freezer setpoint, loading, door-opening frequency, frost accumulation, ventilation, and equipment condition.\u003c\/p\u003e\n\u003ch3\u003eRefurbishment \u0026amp; Testing\u003c\/h3\u003e\n\u003cp\u003eThis Thermo Scientific 20LFEETSA Value Series freezer is supplied used and refurbished by \u003cstrong\u003eAmerican Instrument Exchange\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBefore shipment, our technicians inspect, clean, and test the freezer to verify proper operation. Temperature-controlled laboratory equipment is tested using \u003cstrong\u003eNIST-traceable temperature probes and data logging equipment\u003c\/strong\u003e as appropriate to evaluate temperature performance.\u003c\/p\u003e\n\u003cp\u003eThe freezer is operated under frozen-storage conditions to verify that it reaches and maintains an appropriate temperature within its specified operating range. Testing over time provides a more meaningful assessment than simply confirming that the refrigeration system becomes cold.\u003c\/p\u003e\n\u003cp\u003eOur technicians also inspect the compressor and refrigeration system, mechanical temperature control, door, hinges, gasket, interior and door shelving, interior light, power cord, electrical components, leveling feet, and cabinet.\u003c\/p\u003e\n\u003cp\u003eBecause this is a manual-defrost freezer, accumulated frost and ice are removed as necessary during preparation. The interior, shelves, door surfaces, and exterior cabinet are thoroughly cleaned before the unit is released for shipment.\u003c\/p\u003e\n\u003cp\u003eWorn or defective operating components are repaired or replaced as necessary during the refurbishment process.\u003c\/p\u003e\n\u003cp\u003eCustomers with specific temperature-testing or documentation requirements are encouraged to discuss those requirements with American Instrument Exchange before shipment. When practical, our technicians can accommodate application-specific testing requests.\u003c\/p\u003e\n\u003cp\u003eThis refurbished Thermo Scientific 20LFEETSA includes a \u003cstrong\u003e90-day warranty from American Instrument Exchange\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eShipping \u0026amp; Installation\u003c\/h3\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA is a full-size upright freezer measuring approximately \u003cstrong\u003e73.13\"H × 34\"W × 30.5\"D\u003c\/strong\u003e and weighing approximately 200 lb. before packaging.\u003c\/p\u003e\n\u003cp\u003eCustomers should confirm that adequate clearance is available through loading docks, doorways, hallways, elevators, and laboratory entrances before delivery.\u003c\/p\u003e\n\u003cp\u003eThe freezer operates on \u003cstrong\u003e115 V, 60 Hz power\u003c\/strong\u003e, is rated at 5 A and 575 W, and uses a standard three-prong NEMA 5-15P plug.\u003c\/p\u003e\n\u003cp\u003eThermo Scientific specifies at least \u003cstrong\u003e3 inches of clearance at the sides, back, and top\u003c\/strong\u003e of the cabinet. These ventilation requirements should be incorporated into installation planning rather than using cabinet dimensions alone to determine whether the freezer will fit a particular space.\u003c\/p\u003e\n\u003cp\u003eAfter transportation, the freezer should be positioned, leveled, and allowed to stabilize as appropriate before operation. Laboratories should verify satisfactory temperature performance before transferring temperature-sensitive inventory into the chamber.\u003c\/p\u003e\n\u003cp\u003eAmerican Instrument Exchange can arrange freight transportation throughout the United States and internationally. Customers requiring liftgate service, inside delivery, rigging, or specialized handling should discuss those requirements with AIE before shipment.\u003c\/p\u003e\n\u003ch3\u003eRelated Laboratory Equipment\u003c\/h3\u003e\n\u003cp\u003eLaboratories requiring additional frozen storage can browse American Instrument Exchange's selection of \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/freezers-ice-makers\"\u003elaboratory freezers\u003c\/a\u003e\u003c\/strong\u003e, including full-size upright, undercounter, manual-defrost, automatic-defrost, and specialty laboratory freezers from Thermo Scientific, VWR, Fisher Scientific, Panasonic, PHCbi, and other major manufacturers.\u003c\/p\u003e\n\u003cp\u003eFor biological samples requiring approximately -80°C storage, AIE also maintains a large inventory of refurbished \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/ultralow-freezers\"\u003eultra-low temperature freezers\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eMaterials requiring refrigerated rather than frozen storage can be accommodated by our selection of \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/refrigerators\"\u003elaboratory refrigerators\u003c\/a\u003e\u003c\/strong\u003e, including solid-door, glass-door, chromatography, and undercounter refrigerators.\u003c\/p\u003e\n\u003cp\u003eAmerican Instrument Exchange also offers refurbished \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/centrifuges\"\u003ecentrifuges\u003c\/a\u003e\u003c\/strong\u003e, \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/incubators\/co2\"\u003eCO₂ incubators\u003c\/a\u003e\u003c\/strong\u003e, and \u003cstrong\u003e\u003ca href=\"https:\/\/www.americaninstrument.com\/collections\/biosafety-cabinets\"\u003ebiosafety cabinets\u003c\/a\u003e\u003c\/strong\u003e for laboratories replacing or expanding essential research equipment.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eWhat is the Thermo Scientific 20LFEETSA?\u003c\/h4\u003e\n\u003cp\u003eThe Thermo Scientific 20LFEETSA is a \u003cstrong\u003e20.9 cu. ft. general-purpose upright laboratory freezer\u003c\/strong\u003e from the Thermo Scientific Value Series. It is intended for routine frozen storage of non-critical samples, reagents, and other compatible laboratory materials.\u003c\/p\u003e\n\u003ch4\u003eWhat is the temperature range of the 20LFEETSA?\u003c\/h4\u003e\n\u003cp\u003eThe freezer has an adjustable operating range of \u003cstrong\u003e-12°C to -20°C\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch4\u003eIs the Thermo Scientific 20LFEETSA a -20°C freezer?\u003c\/h4\u003e\n\u003cp\u003eYes. The unit can be adjusted down to -20°C and is suitable for compatible materials requiring conventional approximately -20°C laboratory storage.\u003c\/p\u003e\n\u003cp\u003eIt should not be confused with an ultra-low temperature freezer designed for approximately -80°C storage.\u003c\/p\u003e\n\u003ch4\u003eHow much storage capacity does the 20LFEETSA provide?\u003c\/h4\u003e\n\u003cp\u003eThermo Scientific's technical data sheet specifies \u003cstrong\u003e20.9 cu. ft., or approximately 591.82 liters\u003c\/strong\u003e, of storage capacity.\u003c\/p\u003e\n\u003ch4\u003eIs the 20LFEETSA manual defrost?\u003c\/h4\u003e\n\u003cp\u003eYes. The 20LFEETSA is a \u003cstrong\u003emanual-defrost laboratory freezer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis avoids automatic defrost heating cycles but means accumulated frost must be removed periodically as part of routine freezer maintenance.\u003c\/p\u003e\n\u003ch4\u003eHow many shelves does the 20LFEETSA have?\u003c\/h4\u003e\n\u003cp\u003eThe freezer has \u003cstrong\u003efour fixed interior shelves and six fixed door shelves\u003c\/strong\u003e, providing multiple areas for organizing laboratory inventory.\u003c\/p\u003e\n\u003ch4\u003eDoes the Thermo 20LFEETSA have a door lock?\u003c\/h4\u003e\n\u003cp\u003eNo. Manufacturer specifications indicate that the 20LFEETSA does not include a door lock.\u003c\/p\u003e\n\u003cp\u003eLaboratories requiring controlled access should take this into consideration when evaluating the freezer for their application.\u003c\/p\u003e\n\u003ch4\u003eDoes this freezer have temperature alarms?\u003c\/h4\u003e\n\u003cp\u003eThermo Scientific's technical data sheet does not specify integrated temperature alarms for the 20LFEETSA. Laboratories requiring alarm protection should consider an appropriate independent temperature-monitoring and alarm system.\u003c\/p\u003e\n\u003ch4\u003eIs the 20LFEETSA appropriate for critical biological samples?\u003c\/h4\u003e\n\u003cp\u003eThermo Scientific identifies the 20LFEETSA for \u003cstrong\u003egeneral storage of non-critical samples and reagents\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eLaboratories storing high-value, irreplaceable, clinical, or otherwise critical biological materials should evaluate equipment with appropriate temperature-performance, alarm, monitoring, and backup capabilities for those materials.\u003c\/p\u003e\n\u003ch4\u003eWhat electrical service does the 20LFEETSA require?\u003c\/h4\u003e\n\u003cp\u003eThe freezer operates on \u003cstrong\u003e115 V, 60 Hz electrical service\u003c\/strong\u003e, is rated at 5 A and 575 W, and uses a NEMA 5-15P plug.\u003c\/p\u003e\n\u003ch4\u003eHow much ventilation clearance does the 20LFEETSA need?\u003c\/h4\u003e\n\u003cp\u003eThermo Scientific specifies a minimum of \u003cstrong\u003e3 inches of clearance at the sides, rear, and top\u003c\/strong\u003e of the freezer.\u003c\/p\u003e\n\u003cp\u003eAdequate ventilation should be maintained to allow heat from the refrigeration system to dissipate properly.\u003c\/p\u003e\n\u003ch4\u003eHow does American Instrument Exchange test a refurbished Thermo Scientific 20LFEETSA?\u003c\/h4\u003e\n\u003cp\u003eAmerican Instrument Exchange operates and tests refurbished laboratory freezers before shipment. \u003cstrong\u003eNIST-traceable temperature probes and data logging equipment\u003c\/strong\u003e are used as appropriate to evaluate temperature performance.\u003c\/p\u003e\n\u003cp\u003eThe refrigeration system, temperature control, door, gasket, shelves, interior light, electrical components, leveling feet, and cabinet are also inspected for proper operation and physical condition.\u003c\/p\u003e\n\u003ch4\u003eDoes this refurbished Thermo Scientific 20LFEETSA include a warranty?\u003c\/h4\u003e\n\u003cp\u003eYes. This used and refurbished Thermo Scientific 20LFEETSA Value Series laboratory freezer includes a \u003cstrong\u003e90-day warranty from American Instrument Exchange\u003c\/strong\u003e unless otherwise noted.\u003c\/p\u003e","brand":"Thermo Scientific","offers":[{"title":"Default Title","offer_id":43604466401328,"sku":"2572S FREEZER","price":1100.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.americaninstrument.com\/products\/thermo-scientific-20lfeetsa-value-series-laboratory-freezer","provider":"American Instrument Exchange","version":"1.0","type":"link"}